Web Reference: Introduction应该是一篇论文中最难写的一部分,也是最重要的。“A good introduction will “sell” the study to editors, reviewers, readers, and sometimes even the media.” [1]。 通过Introduction可以判断一篇论文的好坏,因此我们应引起重视,下苦功夫写好每篇论文的introduction。 如何写好introduction?要写好introduction我们首先 ... 二、引言的写作方法 几乎所有教你如何写Introduction的,都告诉你有一种叫做“漏斗式”的方法, 我理解的漏斗式写作方法就是依次写好这5个部分,已达到逐层聚焦的作用: ①大背景大帽子: 例如汽车保有量逐年提高,排放问题日益凸显。 (Video Source: Youtube. By WORDVICE) 看完了?们不妨透过下面两个问题来梳理一下其中信息: Why An Introduction Is Needed? 「从文章的大结构来看Introduction提出了你的研究问题,这个问题的答案应该在文章的Discussion或者Conclusion部分呈现给读者,也就是在文章的首尾形成一个前后呼应的关系」。 那Introduction ...
YouTube Excerpt: MIT's Josh Angrist introduces

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  4. Assets, Properties & Investments
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Introduction to Difference-in-Differences (DiD): Panel Data and Fixed Effects Models Explained
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Econometrics: Difference in Difference (DiD)
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Last Updated: April 3, 2026

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